Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://coretry.ru/uplcv?utm_term=you+can+heal+your+life+pdf+in+tamil PDF link annotation

  • https://kabelkyaobuv.sk/editor_uploads/files/32028125174.pdfIn PDF document text
  • http://gruppocinofilomarsalese.com/userfiles/files/88091565449.pdfIn PDF document text
  • http://viorina-deko.com/images/file/81754813507.pdfIn PDF document text
  • https://scalper.ir/data/files/file/68682299755.pdfIn PDF document text
  • https://springkasteelhuren.be/userfiles/file/sufusazexosevatalel.pdfIn PDF document text
  • https://recapress.com/ckfinder/userfiles/files/30452956605.pdfIn PDF document text
  • http://ifaistos.reality.gr/~triantaf/images/file/vojavafapovavon.pdfIn PDF document text
  • https://il-gusto.com/images/file/jipikokupoxe.pdfIn PDF document text
  • http://unleadedcoffee.cz/soubory/gokujowofemako.pdfIn PDF document text
  • https://dukupahit.com/contents/files/davivos.pdfIn PDF document text
  • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c06f595ea---wofizovulotofulul.pdfIn PDF document text
  • http://csaladiegyteruautok.hu/userfiles/files/jetukano.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/vumugp9s5pj3g0kf369iddgna0/28138024523.pdfIn PDF document text
  • http://secondhandgraphics.com/usrfiles/file/81990564840.pdfIn PDF document text
  • https://koparieshorvathbusz.hu/files/file/85520417927.pdfIn PDF document text
  • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613579ecf3686---fadesuvetite.pdfIn PDF document text
  • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1613bbed2295ff---28876152870.pdfIn PDF document text
  • http://dunakeszi.varosom.hu/userfiles/files/biruxivifixu.pdfIn PDF document text
  • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/7e1abdf61b35f21588ae686f494c3b55/woboxawigusarofiwawupu.pdfIn PDF document text
  • http://mwflower.com/upimagesfile///zajaguli.pdfIn PDF document text
  • https://uslugiinzynierskie.eu/eurostyl/photos/file/konazipikunodumomabevaju.pdfIn PDF document text
  • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16139f1ff3ce2b---63058464194.pdfIn PDF document text
  • http://zensushialiso.com/uploads/files/24683604777.pdfIn PDF document text
  • http://bsl-trans.ru/admin/ckfinder/userfiles/files/tatasakegeweduxizuwu.pdfIn PDF document text
  • https://grupo.iberia.com/js/ckfinder/userfiles/files/51022619392.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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